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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.deskclock.data;
     18 
     19 import android.content.Context;
     20 import android.os.SystemClock;
     21 import android.text.format.DateFormat;
     22 
     23 import java.util.Calendar;
     24 
     25 /**
     26  * All time data is accessed via this model. This model exists so that time can be mocked for
     27  * testing purposes.
     28  */
     29 final class TimeModel {
     30 
     31     private final Context mContext;
     32 
     33     TimeModel(Context context) {
     34         mContext = context;
     35     }
     36 
     37     /**
     38      * @return the current time in milliseconds
     39      */
     40     long currentTimeMillis() {
     41         return System.currentTimeMillis();
     42     }
     43 
     44     /**
     45      * @return milliseconds since boot, including time spent in sleep
     46      */
     47     long elapsedRealtime() {
     48         return SystemClock.elapsedRealtime();
     49     }
     50 
     51     /**
     52      * @return {@code true} if 24 hour time format is selected; {@code false} otherwise
     53      */
     54     boolean is24HourFormat() {
     55         return DateFormat.is24HourFormat(mContext);
     56     }
     57 
     58     /**
     59      * @return a new Calendar with the {@link #currentTimeMillis}
     60      */
     61     Calendar getCalendar() {
     62         final Calendar calendar = Calendar.getInstance();
     63         calendar.setTimeInMillis(currentTimeMillis());
     64         return calendar;
     65     }
     66 }